Variant chr2-190057123-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_005259.3(MSTN):c.*135G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00499 in 862,534 control chromosomes in the GnomAD database, including 131 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.019 ( 94 hom., cov: 32)

Exomes 𝑓: 0.0020 ( 37 hom. )

Consequence

MSTN
NM_005259.3 3_prime_UTR

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.242

Variant links:

Genes affected

MSTN (HGNC:4223): (myostatin) This gene encodes a secreted ligand of the TGF-beta (transforming growth factor-beta) superfamily of proteins. Ligands of this family bind various TGF-beta receptors leading to recruitment and activation of SMAD family transcription factors that regulate gene expression. The encoded preproprotein is proteolytically processed to generate each subunit of the disulfide-linked homodimer. This protein negatively regulates skeletal muscle cell proliferation and differentiation. Mutations in this gene are associated with increased skeletal muscle mass in humans and other mammals. [provided by RefSeq, Jul 2016]

MSTN links:

C2orf88 (HGNC:28191): (chromosome 2 open reading frame 88) Predicted to enable protein kinase A regulatory subunit binding activity. Predicted to be located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

C2orf88 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.56).

BP6

Variant 2-190057123-C-T is Benign according to our data. Variant chr2-190057123-C-T is described in ClinVar as [Benign]. Clinvar id is 333231.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.063 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	#exon/exons	MANE
MSTN	NM_005259.3 linkuse as main transcript	c.*135G>A	3_prime_UTR_variant	3/3	ENST00000260950.5
C2orf88	XM_047446008.1 linkuse as main transcript	c.-517-22831C>T	intron_variant
C2orf88	XM_047446009.1 linkuse as main transcript	c.-517-22831C>T	intron_variant

Ensembl

Gene	Transcript	HGVSc	Effect	#exon/exons	TSL	MANE	Appris
MSTN	ENST00000260950.5 linkuse as main transcript	c.*135G>A	3_prime_UTR_variant	3/3	1	NM_005259.3	P1
C2orf88	ENST00000478197.1 linkuse as main transcript	n.220-22100C>T	intron_variant, non_coding_transcript_variant		4
C2orf88	ENST00000495546.1 linkuse as main transcript	n.202-22831C>T	intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes

AF:

0.0187

AC:

2847

AN:

151964

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0652

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00657

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000280

Gnomad OTH

AF:

0.0134

GnomAD4 exome

AF:

0.00204

AC:

1452

AN:

710452

Hom.:

Cov.:

AF XY:

0.00173

AC XY:

637

AN XY:

367456

show subpopulations

Gnomad4 AFR exome

AF:

0.0650

Gnomad4 AMR exome

AF:

0.00417

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000112

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000131

Gnomad4 OTH exome

AF:

0.00495

GnomAD4 genome

AF:

0.0187

AC:

2849

AN:

152082

Hom.:

Cov.:

AF XY:

0.0179

AC XY:

1330

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.0651

Gnomad4 AMR

AF:

0.00656

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000280

Gnomad4 OTH

AF:

0.0133

Alfa

AF:

0.0128

Hom.:

Bravo

AF:

0.0212

Asia WGS

AF:

0.00635

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:1

Benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

- -

Myostatin-related muscle hypertrophy

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.56

CADD

Benign

6.0

DANN

Benign

0.61

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over